Water-feeding dust-free blackboard eraser
A blackboard eraser and water supply technology, which is applied in the field of teaching tools, can solve the problems of endangering the health of teachers and students, dust polluting the classroom air, time-consuming and labor-intensive problems, etc., and achieves the effect of good dust removal effect and simple structure
Inactive Publication Date: 2017-03-08
张保虎
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Problems solved by technology
When using a blackboard, it is necessary to use a blackboard eraser to erase the chalk writing. The traditional brush is very time-consuming and labor-intensive, and the large amount of dust generated will pollute the classroom air and seriously endanger the health of teachers and students.
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[0012] Accompanying drawing is a kind of specific embodiment of the present invention.
[0013] The water-supply dust-free blackboard eraser of the present invention comprises a rag 2, a sponge body 4, a fan 7, a heating wire 6 and a storage battery, and is characterized in that: the wipe body is divided into a rag compartment 3, a storage battery compartment 5 and a fan compartment 10; the rag compartment 3 is located at On the left side of the wiping body, a matching sponge body 4 is arranged on the innermost side, and the outside of the contact sponge body 4 is a cuboid-shaped rag 2, and the rag 2 protrudes outside the rag bin 3, and the rag bin 3 is also provided with a buckle. Button cover 1; the lower right side of the wiping body is the air inlet bin 9 and the fan bin 10 respectively, and the air inlet bin 9 extends to the bottom of the wiping body, and there are several protruding strip-shaped air inlets 8 at the bottom, and the air inlet The right side of the bin 9 is...
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The invention belongs to the field of teaching tools, and specifically relates to a water-feeding dust-free blackboard eraser. The water-feeding dust-free blackboard eraser comprises a cleaning cloth, a sponge body, a fan, electric heating wires and a storage battery. The water-feeding dust-free blackboard eraser is characterized in that an eraser body is divided into a cleaning cloth bin, a storage battery bin and a fan bin; the cleaning cloth bin is located at the left side of the eraser body, the matching sponge body is arranged at the innermost side of the cleaning cloth bin, and the cuboid-shaped cleaning cloth is arranged at the outer side contacting with the sponge body; an air inlet bin and the fan bin are arranged in the lower part of the right side of the eraser body respectively, and the fan bin is located at the right side of the air inlet bin and communicates with the air inlet bin; the fan and the electric heating wires are fixed in the fan bin, the electric heating wires are located at the right side of the fan, and a plurality of strip-shaped air outlet ports are arranged in the right bin wall of the fan bin; and the storage battery bin is arranged in the upper part of the right side of the eraser body, the storage battery is arranged in the storage battery bin, and the storage battery supplies power to the fan and the electric heating wires in the fan bin. The water-feeding dust-free blackboard eraser disclosed by the invention has the beneficial effects of being simple in structure, dust-free and healthy, and good in dust removal effect.
Description
technical field [0001] The invention belongs to the field of teaching tools, in particular to a water-feeding and dust-free blackboard eraser. Background technique [0002] Blackboard is widely used in large, middle and small schools as a kind of requisite teaching tool. When using a blackboard, it is necessary to use a blackboard eraser to erase the chalk writing. The traditional brush is very time-consuming and laborious, and the large amount of dust generated will pollute the classroom air and seriously endanger the health of teachers and students. Contents of the invention [0003] In order to solve the above-mentioned problems and make up for the deficiencies of the traditional technology, the present invention provides a water-supply dust-free blackboard eraser with a simple structure, dust-free and healthy, and good dust-removing effect. [0004] The present invention is achieved through the following technical solutions: [0005] A water supply and dust-free blac...
Claims
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IPC IPC(8): B43L21/00
Inventor 张保虎
Owner 张保虎